Concept of Work.

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Presentation transcript:

Concept of Work

Work is done, in physics, only when an applied force acts on an object, and the object undergoes a displacement in the direction of the applied force.

The amount of work done, measured in joules (1 J = 1 N The amount of work done, measured in joules (1 J = 1 N.m) is given by the equation Where is in newtons, and is in metres.

To evaluate the vector dot product, multiply the component of the applied force (in the direction of the displacement

The result will be a scalar quantity